64252705 has 8 divisors (see below), whose sum is σ = 84112704. Its totient is φ = 46729200.

The previous prime is 64252697. The next prime is 64252723. The reversal of 64252705 is 50725246.

64252705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64252705 - 2³ = 64252697 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 584061 + ... + 584170.

It is an arithmetic number, because the mean of its divisors is an integer number (10514088).

Almost surely, 2^64252705 is an apocalyptic number.

It is an amenable number.

64252705 is a deficient number, since it is larger than the sum of its proper divisors (19859999).

64252705 is a wasteful number, since it uses less digits than its factorization.

64252705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168247.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 64252705 is about 8015.7785024288. The cubic root of 64252705 is about 400.5257773427.

The spelling of 64252705 in words is "sixty-four million, two hundred fifty-two thousand, seven hundred five".